Application: gvSIG desktop

        loadExpressionBookmarks();

        loadExpressionHistory();

    public void loadExpressionHistory() {

        PluginsManager pluginManager = PluginsLocator.getManager();

        final PluginServices plugin = pluginManager.getPlugin(this);

        DynObject pluginProperties = plugin.getPluginProperties();

        List<Expression> dynBookmarks = (List<Expression>) pluginProperties.getDynValue("expressionHistory");

        if (dynBookmarks == null) {

            return;

        }

        final ExpressionEvaluatorManager expressionManager = ExpressionEvaluatorLocator.getExpressionEvaluatorManager();

        History<Expression> history = expressionManager.getHistory();

        for (Expression expression : dynBookmarks) {

            history.add(expression);

        }

        pluginManager.addShutdownTask("saveExpressionHistory", new Runnable() {

            @Override

            public void run() {

                DynObject properties = plugin.getPluginProperties();

                ArrayList<Expression> var = new ArrayList<>();

                for (Expression expression : history) {

                    var.add(expression);

                }

                properties.setDynValue("expressionHistory", var);

            }

        }, false, 100);

    }

    public void loadExpressionBookmarks() {

        PluginsManager pluginManager = PluginsLocator.getManager();

        final PluginServices plugin = pluginManager.getPlugin(this);

        DynObject pluginProperties = plugin.getPluginProperties();

        Map<String, Expression> dynBookmarks = (Map<String, Expression>) pluginProperties.getDynValue("expressionBookmarks");

        if (dynBookmarks == null) {

            return;

        }

        final ExpressionEvaluatorManager expressionManager = ExpressionEvaluatorLocator.getExpressionEvaluatorManager();

        Bookmarks<Expression> bookmarks = expressionManager.getBookmarks();

        for (String key : dynBookmarks.keySet()) {

            Expression bookmark = dynBookmarks.get(key);

            bookmarks.add(bookmark);

        }

        pluginManager.addShutdownTask("saveExpressionBookmarks", new Runnable() {

            @Override

            public void run() {

                DynObject properties = plugin.getPluginProperties();

                Map<String, Expression> var = new HashMap<>();

                for (Bookmark<Expression> bookmark : bookmarks) {

                    var.put(bookmark.getName(), bookmark.getValue());

                }

                properties.setDynValue("expressionBookmarks", var);

            }

        }, false, 100);

    }